第 3 集: Mob在河邊奔跑時昏倒，引發一名戴著神秘面具的女子靠近他
2016年7月25日 播出
It's great that Mob joined the Body Improvement Club, but he suddenly faints as he's running along the riverside. His wish is to get stronger and to be able to get closer to his beloved Tsubomi-chan. One day, as Mob is feeling troubled, a woman with a strange mask approaches him... Progress toward Mob's explosion: 20% (Source: Crunchyroll)